Index: head/astro/opencpn/Makefile
===================================================================
--- head/astro/opencpn/Makefile	(revision 566010)
+++ head/astro/opencpn/Makefile	(revision 566011)
@@ -1,62 +1,70 @@
 # $FreeBSD$
 
 PORTNAME=	opencpn
 PORTVERSION=	5.2.4
 DISTVERSIONPREFIX=	v
 CATEGORIES=	astro geography
 
 MAINTAINER=	ml@netfence.it
 COMMENT=	Concise ChartPlotter/Navigator
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING.gplv2
 
 LIB_DEPENDS=	libportaudio.so:audio/portaudio \
 		libcurl.so:ftp/curl \
 		libexif.so:graphics/libexif \
 		libexpat.so:textproc/expat2 \
 		libsndfile.so:audio/libsndfile \
 		libtinyxml.so:textproc/tinyxml \
 		liblz4.so:archivers/liblz4
 
-USES=		cmake compiler:c++11-lang gettext-tools gl gnome \
-		libarchive localbase pkgconfig sqlite xorg
+USES=		cmake gettext-tools gl gnome libarchive localbase pkgconfig \
+		sqlite xorg
 USE_CXXSTD=	c++11
 USE_GITHUB=	yes
 GH_ACCOUNT=	${GH_PROJECT}
 GH_PROJECT=	OpenCPN
 USE_GL=		gl glu
 USE_GNOME=	cairo gdkpixbuf2 gtk30 pango
 INSTALLS_ICONS=	yes
 USE_LDCONFIG=	${PREFIX}/lib/opencpn
 USE_WX=		3.0+
 WX_CONF_ARGS=	absolute
 WX_PREMK=	yes
 USE_XORG=	ice sm x11 xext
 
 CMAKE_ARGS=	-DOCPN_BUNDLE_GSHHS=CRUDE
 CMAKE_ON=	OCPN_BUNDLE_TCDATA OCPN_FORCE_GTK3 # OCPN_USE_CRASHREPORT
 CMAKE_OFF=	OCPN_USE_NEWSERIAL
 
 OPTIONS_DEFINE=		DOCS
 OPTIONS_SUB=		yes
 
 DOCS_CMAKE_ON=	-DOCPN_BUNDLE_DOCS:STRING="ON"
 DOCS_CMAKE_OFF=	-DOCPN_BUNDLE_DOCS:STRING="OFF"
+
+.include <bsd.port.options.mk>
+
+.if ${ARCH:Mpowerpc64*}
+USES+=	compiler:gcc-c++11-lib
+.else
+USES+=	compiler:c++11-lang
+.endif
 
 .include <bsd.port.pre.mk>
 
 post-patch:
 	@${REINPLACE_CMD} \
 		-e 's,wx-config,${WX_CONFIG},' \
 		-e 's,$${PREFIX_PKGDATA}/doc,${DOCSDIR},g' \
 		${WRKSRC}/CMakeLists.txt
 .if ${ARCH} != amd64 && ${ARCH} != i386
 	@${REINPLACE_CMD} -e '/-msse/d' -e '/-mssse3/d' \
 		-e '/-mavx2/d' ${WRKSRC}/CMakeLists.txt
 .endif
 
 post-install-DOCS-on:
 	${CP} -R ${WRKSRC}/Docs/OSENC ${STAGEDIR}${DOCSDIR}/OSENC.docx
 
 .include <bsd.port.post.mk>